I am a copier, I copy everything from one to another Key Features Field-to-field and method-to-field copying based on matching names Support for copying data: From slice to slice From struct to slice From map to map Field manipulation through tags: ...
copyStruct.go copyStruct2Map.go copyStruct2Map_test.go copyStruct_test.go copy_test.go go.mod go.sum helper.go README.md Features copy slice to slice by type copy map to map by type copy struct to struct by field name copy struct to map by field name support append mode...
// Element is an element of a linked list.typeElementstruct{// Next and previous pointers in the doubly-linked list of elements.// To simplify the implementation, internally a list l is implemented// as a ring, such that &l.root is both the next element of the last// list element (...
channel数据结构 源码文件:src/runtime/chan.goline:33typehchanstruct{ qcountuint//当前通道中元素个数dataqsizuint//最多可存放的元素个数buf unsafe.Pointer//环形队列指针elemsizeuint16//每个元素的大小closeduint32//记录关闭状态elemtype*_type//元素类型sendxuint//写下标recvxuint//读下标recvq waitq//...
分段栈: 当调用morestack的时候,函数为协程分配一段新的内存栈,然后把协程栈的信息写入新栈的栈底的struct中,并且还包括了老栈的地址,这样就把两个栈联系到一起了,然后我们重启goroutine,从导致栈空间用光的那个函数开始执行。 以上的过程大概就是“分段栈”的思想。 我们来看看这里有几个问题:...
type LockOptions struct { isBlock bool blockWaitingSeconds int64 expireSeconds int64 } (3)非阻塞模式加锁 倘若锁处于非阻塞模式,则只会执行一次 tryLock 方法进行尝试加锁动作,倘若失败,就直接返回错误 tryLock 操作基于 redis 的 setNEX 操作实现,即基于原子操作实现 set with expire time only if key not ...
Arrays are values. Assigning one array to another copies all the elements. In particular, if you pass an array to a function, it will receive a copy of the array, not a pointer to it. The size of an array is part of its type. The types [10]int and [20]int are distinct. ...
Another definition of systems programming is the stuff that runs in the cloud.--Rob Pike今天我探索了一下 golang 的两个方面:类似于 Java 中有很好的 Builder 模式 Getter 和 Setter 的命名约定然后我发现了函数选项(Functional Options)模式, GIST上有一个最小的例子。 函数选项模式是由Rob Pike提出,并...
Method Set是Go语法中一个重要的隐式概念,在为interface变量做动态类型赋值、embeding struct/interface、type alias、method expression时都会用到Method Set这个重要概念。 1、interface的Method Set 根据Go spec,interface类型的Method Set就是其interface(An interface type specifies a method set called its interface...
deepCopy deep copy a struct variable to another one getClipText get clipboard text setClipText set clipboard text trim trim a string run execute a script file(in a new created VM) run(argsA...) runCode execute a script string(in a new created VM, argsG will hold the arguments) runCo...